This page lists 114 cooling system parts for the 2013 Acura RDX, across 18 part types, covering the 3.5L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2013 Acura RDX, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant / Antifreeze (17 parts), Temperature Sender / Sensor (14 parts) and Thermostat (11 parts). The other 15 part types cover the remaining 72 parts.
Every part on this page is matched to the 3.5L V6 — the only engine offered in the 2013 Acura RDX.
The most listed brands for 2013 Acura RDX cooling system parts are MOTORAD (15 parts), BECK/ARNLEY (7 parts) and GATES (7 parts), plus 44 more brands. Quality grades include Standard Replacement, Economy and Premium.
24 parts on this 2013 Acura RDX page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and MAHLE / CLEVITE C32870 (Coolant Hose / Pipe Seal). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AF6310 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX Original EquipmentAsian Blue | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | 861398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN | ACB003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueHOAT | View on Amazon |
| BECK/ARNLEY | 2521501 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY | 2521001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Green1 Gallon | View on Amazon |
| PEAK | PAB1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET Asian Extended Life Blue1 Gallon | View on Amazon |
| PENTOSIN | 8115207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost A31 Gallon | View on Amazon |
This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator.
17 Coolant / Antifreeze parts for the 2013 Acura RDX come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 other brands. The "Popular" part is FVP MV5050GAL.
In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.
The Economy section lists 4 options from FVP, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Heavy Duty grade, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.
In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Popular | C32870 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Coolant Outlet O-RingMolded Rubber | View on Amazon |
| AJUSA | 16022400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | COOLANT PIPE | View on Amazon |
| AJUSA | 16022450 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | COOLANT PIPE | View on Amazon |
| FEL-PRO | ES72774 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | EGR Valve Gasket(s) IncludedSet | View on Amazon |
| VICTOR REINZ | 411076700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | O-Ring | View on Amazon |
This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
5 Coolant Hose / Pipe Seal parts are listed for the 2013 Acura RDX, from AJUSA, MAHLE / CLEVITE, FEL-PRO and 1 other brand. MAHLE / CLEVITE C32870 carries the "Popular" badge.
This group includes MAHLE / CLEVITE C32870, AJUSA 16022400 and AJUSA 16022450 and the remaining parts above.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | AC3014117 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Reservoir Assembly | View on Amazon |
| VARIOUS MFR | AC3014117 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Reservoir Assembly | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
2 Coolant Reservoir parts are listed for the 2013 Acura RDX, from TECHPRO and VARIOUS MFR.
This group includes TECHPRO AC3014117 and the remaining parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DORMAN | 54370 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| MOTORAD | T135 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
3 Coolant Reservoir Cap parts are listed for the 2013 Acura RDX, from CALORSTAT, DORMAN and MOTORAD.
Listed part numbers: CALORSTAT RC0175, DORMAN 54370 and MOTORAD T135.
Coolant Water Crossover Mounting Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE | C17813 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rubber Coated Metal | View on Amazon |
| VICTOR REINZ | 181016001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Improved Design | View on Amazon |
This table covers the Coolant Water Crossover Mounting sets.
2 Coolant Water Crossover Mounting Set parts for the 2013 Acura RDX come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.
Listed part numbers: MAHLE / CLEVITE C17813 and VICTOR REINZ 181016001.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cooling System Pressure | View on Amazon |
| MOTORAD | 3124 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
3 Cooling System Tester Adapter parts for the 2013 Acura RDX come from 2 brands — MOTORAD and GATES.
This group includes GATES 31409, MOTORAD 3124 and MOTORAD 3125.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 3517 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 RowPlastic Tank / Aluminum Core | View on Amazon |
| KOYORAD Popular | A2989 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DENSO | 2219558 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SPECTRA PREMIUM | CU2989 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TYC | 13384 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PRIMARY | View on Amazon |
| UAC | RA13384C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Downflow | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
6 Radiator parts for the 2013 Acura RDX come from 6 brands — CSF, KOYORAD, DENSO and 3 other brands. The "Popular" part is CSF 3517.
Part numbers include CSF 3517, KOYORAD A2989 and DENSO 2219558, among others listed above.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | ST37 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Safety LeverIndicator Markings Color: Silver | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 4514 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro, 16 psi | View on Amazon |
| GATES Popular | 31412 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| CALORSTAT | RC0040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 2 sealsMetallic | View on Amazon |
| MOTORAD | T37 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | StandardIncludes Hose | View on Amazon |
| SKP | SK10242 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 16 psi Pressure Rating | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
6 Radiator Cap parts for the 2013 Acura RDX come from 5 brands — MOTORAD, CSF, GATES and 2 other brands. The "Popular" part is CSF 4514.
In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST37.
Standard Replacement: 5 parts, from CSF, GATES, CALORSTAT and 2 other brands. A representative part number is CSF 4514.
This group includes CSF 4514, MOTORAD ST37 and GATES 31412 and the remaining parts above.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2811342 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LeftRadiator Side | View on Amazon |
| TECHPRO | HO3115165 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ULTRA-POWER | T601190 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC Popular | 601190 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
| AGILITY | 6019148 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fan AssemblyLeft | View on Amazon |
| UAC | FA70786C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VDO / CONTINENTAL | FA70753 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
7 Radiator Fan Assembly parts are listed for the 2013 Acura RDX, from GPD, TECHPRO, ULTRA-POWER and 4 other brands. TYC 601190 carries the "Popular" badge.
Economy: 3 parts, from GPD, TECHPRO and ULTRA-POWER. A representative part number is GPD 2811342.
The Standard Replacement section: 4 options from TYC, AGILITY, UAC and 1 other brand. TYC 601190 is listed in this group.
This group includes TYC 601190, GPD 2811342 and TECHPRO HO3115165 and the remaining parts above.
Radiator Fan Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA | A26010019 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Leftwith OE No. 19030R70A01 | View on Amazon |
| ACKOJA | A26010021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rightwith OE No. 38616R70A01 | View on Amazon |
This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
2 Radiator Fan Motor parts for the 2013 Acura RDX come from ACKOJA.
This group includes ACKOJA A26010019 and ACKOJA A26010021.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 72562 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Curved | View on Amazon |
| CONTINENTAL | 66359 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
| DAYCO | 72871 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Curved | View on Amazon |
| GATES | 51389 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
| GATES | 51390 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
5 Radiator Hose parts are listed for the 2013 Acura RDX, from DAYCO, GATES and CONTINENTAL. DAYCO 72562 carries the "Popular" badge.
This group includes DAYCO 72562, CONTINENTAL 66359 and DAYCO 72871 and the remaining parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | TX215T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| CALORSTAT | WS3039 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GPD | 1712488 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 2 Terminal(s)with M10 x 1.25 Thread | View on Amazon |
| HOLSTEIN | 2CTS0123 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | CTS243 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO | V26720009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thread Size: M10 X 1.25Plug (Connector): 2 Pins | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1581570 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Popular | 5S8970 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wiring Harness Included: No | View on Amazon |
| DELPHI | TS10288 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET | 73347 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FOUR SEASONS | 37896 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| NTK | EF0175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | TX215 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS | 2111080 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
14 Temperature Sender / Sensor parts for the 2013 Acura RDX come from 13 brands — STANDARD MOTOR PRODUCTS, CALORSTAT, GPD and 10 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX215T.
The Economy section: 6 options from STANDARD MOTOR PRODUCTS, CALORSTAT, GPD and 3 other brands. STANDARD MOTOR PRODUCTS TX215T is listed in this group.
Standard Replacement: 8 parts, from BECK/ARNLEY, WELLS, DELPHI and 5 other brands. A representative part number is BECK/ARNLEY 1581570.
Temperature Sender / Sensor O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 72926 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Temperature Sender / Sensor O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
This group shows a single part: FEL-PRO 72926.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 5302170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultra Stat | View on Amazon |
| MOTORAD | 5302180 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultra Stat | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7302170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fail-Safe | View on Amazon |
| MOTORAD | 7302180 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | THH017 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| GATES Popular | 33878 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| MOTORAD Popular | 302170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| BECK/ARNLEY | 1430963 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | TEMPERATURE 82C/180F | View on Amazon |
| MOTORAD | 302180 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| MOTORAD | 302150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| MOTORAD | 6018KT | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Kit | View on Amazon |
This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part.
11 Thermostat parts are listed for the 2013 Acura RDX, from MOTORAD, AISIN, GATES and 1 other brand. AISIN THH017 carries the "Popular" badge.
The Heavy Duty section: 2 options from MOTORAD. MOTORAD 5302170 is listed in this group.
The Premium section: 2 options from MOTORAD. MOTORAD 7302170 is listed in this group.
The Standard Replacement section: 7 options from MOTORAD, AISIN, GATES and 1 other brand. AISIN THH017 is listed in this group.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing Gasket | View on Amazon |
| MOTORAD Popular | MG81 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| AISIN | THP509 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| APEX | AWO2061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat O-RingThermostat Seal | View on Amazon |
| BECK/ARNLEY | 0390115 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| ELRING | 463700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | material: NBR (nitrile butadiene rubber) | View on Amazon |
| FACET | 79627 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C31207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| VICTOR REINZ | 711535700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing Seal | View on Amazon |
This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
9 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2013 Acura RDX come from 9 brands — FEL-PRO, MOTORAD, AISIN and 6 other brands. The "Popular" part is FEL-PRO 35162.
This group includes FEL-PRO 35162, MOTORAD MG81 and AISIN THP509 and the remaining parts above.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 9025827 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing | View on Amazon |
| GPD | 8241573 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Outlet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 86018 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Outlet | View on Amazon |
| GATES | CO34887 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat CoverWater Outlet | View on Amazon |
| MOTORAD | CH6018 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Thermostat Housingor Water Outlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
5 Thermostat Housing / Water Outlet parts are listed for the 2013 Acura RDX, from DORMAN, GPD, FOUR SEASONS and 2 other brands. DORMAN 9025827 carries the "Popular" badge.
Economy: 2 parts, from DORMAN and GPD. A representative part number is DORMAN 9025827.
The Standard Replacement section: 3 options from FOUR SEASONS, GATES and MOTORAD. FOUR SEASONS 86018 is listed in this group.
Listed part numbers: DORMAN 9025827, GPD 8241573 and FOUR SEASONS 86018, plus the other parts above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK1351530 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY | 1312285 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| FVP | US9470 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS | US9470 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WJB / INMOTION PARTS | WU9470 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | WPH801 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| GMB Popular | 1351530 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ACDELCO | 252896 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| AISIN | WPH801KR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Korean Manufactured Replacement Pump | View on Amazon |
| DAYCO | DP904 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Timing Belt Should be Replaced with Water Pump | View on Amazon |
| GATES | 41184 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Timing belt driven | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
11 Water Pump parts are listed for the 2013 Acura RDX, from AISIN, SKP, BECK/ARNLEY and 7 other brands. SKP SK1351530 carries the "Popular" badge.
Economy: 5 parts, from SKP, BECK/ARNLEY, FVP and 2 other brands. A representative part number is SKP SK1351530.
The Standard Replacement section: 6 options from AISIN, GMB, ACDELCO and 2 other brands. AISIN WPH801 is listed in this group.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35677 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | To Block | View on Amazon |
| APEX | AWP3161 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY | 0394112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| MAHLE / CLEVITE | K17818 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| VICTOR REINZ | 711523400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
5 Water Pump Gasket parts for the 2013 Acura RDX come from 5 brands — FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. The "Popular" part is FEL-PRO 35677.
This group includes FEL-PRO 35677, APEX AWP3161 and BECK/ARNLEY 0394112 and the remaining parts above.
Buying Cooling System Parts for a 2013 Acura RDX
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 3.5L V6 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Temperature Sender / Sensor .
Frequently Asked Questions
How many cooling system parts fit the 2013 Acura RDX?
Our catalog currently lists 114 cooling system parts for the 2013 Acura RDX across 18 subcategories and 47 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2013 Acura RDX?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2013 Acura RDX was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2013 Acura RDX?
Every part on this page is matched to the 3.5L V6 engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2013 Acura RDX
Cooling System Parts for Other Acura RDX Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.